Automatic dust-collector



(No Model.)

J. F. COLE. AUTOMATIC DUST COLLECTOR.

lllmllmlllnlllllmlilllllllllll Il INIII/I/IUIHIII 1NiTnD STATES PATENTOFFICE.

JUDSON F. COLE, OF SHELBY, OHIO.

AUTOMATIC DUST-COLLECTOR.

SPECIFICATION forming part of Letters Patent No. 535,67 5, dated Marchi2, 1895.

Application led August 4., l 894.

.To all whom it may concern,.-

Be it known that I, JUDsoN F. COLE, a citizen of the United States ofAmerica, residingat Shelby, in the county of Richland and State of Ohio,have invented certain new and useful Improvements in AutomaticDust-Collectors, of which the following is a specification.

My invention relates to improvements in dust collector strainersdesigned to catch, retain and deliver the dust blown into it from dustproducing machinery.

The object of the invention is to provide a collector with anexceedingly large cloth surface while at the same time it will occupybut little space, and further to provide means for keeping the meshes ofthe cloth free from dust thus permitting free passage to the air andpreventing clogging. I attain these objects by means of the inventionillustrated in the accompanying drawings, in which Figurel is ahorizontal section partly broken away. Fig. 2 is a side elevation partlyin section. Fig. 3 is an end elevation with part of one of the strainersbroken away. Fig. 4. is a detail showing one of the strainer frameswithout the cloth. Fig. 5 is an end view of the same. Fig. 6 is avertical section of the lower portion of the strainers on a largerscale, and Fig. 7 is a horizontal sectional view of the portionrepresented in Fig. 6.

In the drawings L are the supporting stand ards or legs to which aresecured the longitudinal supporting bars or sills E, forming thefoundation frame of the machine. Upon the sills are mounted the strainerframes, as will be hereinafter more particularly described, and abovethe upper ends of the strainer frames is the air chamber O into whichthe dust laden air is conducted through a duct I. A hopper I-I isprovidedbeneath the frames to receive the dust as it drops from thecloth and in this hopper, at the bottom thereof, is provided a conveyerK which conveys away the dust and dirt which may accumulate. An outlet Dis providedv through which the dust is conveyed from the conveyer.

The strainer frames, shown in detail in Figs. 4i and 5, consist of thevertical bars F, (two, three or more as desired) to which are connectedupon each side the horizontal bars J, J, forming rectangular frames.Upon the vertical bars F, and between them and the Serial No. 519,498.(No modelJ bars J, at their point of contact are stretched the filtercloths, having their edges secured by gluing or tacking or like mannerto the outer faces of the vertical bars and to the inner faces of thehorizontal bars. It will thus be seen that when the frames are mountedvertically upon the sills asshown inthe drawings there will be a seriesof spaces or passages V, which are open at their upper ends to thechamber O, and at their lower ends to the hopper H, but which have theirsides closed by the vertical bars F. Alternately arranged between thesespaces V, are a series of corresponding spaces M, M, which have theirtops and bottoms closed by the horizontal bars J, J, but are open ontheir sides. It will thus be seen that as the air laden with dust passesfrom the blower or other source of supply into the chamber O, it willpass from there into the spaces V, and spread over the surface of thefilter cloths, and as the outlet D is normally closed so that no air canpass through it the air will betforced through the cloths into thespaces M, and from thence will escape through the side openings into theroom occupied by the separator, or may be collected and carried to anysuitable point. The dust, however, will remain-upon the lilter clothswithin the openings or spaces V and as it accumulates will drop downinto the hopper and will be conveyed by the screw toward the deliveryopening D where it may be removed at certain intervals.

In order to keep the filter cloths free from dust and prevent theirbecoming clogged I provide means for jarring the frames. This meansconsists of a horizontal bar N mounted upon springs S which tend to keepit forced constantly against the edges of the frames. A shaft G, drivenfrom any suitable source of power carries two or more cams or arms A,which as the shaft revolves, alternately force the bar outward againstthe pressure of the springs, and then allow it to spring back and strikea sharp blow against the edges of the frames, thus vibrating them andshaking off all collected dust.

Having thus described my invention, what I claim is- In a dustcollector, the combination of the upper chamber for receiving the air,thelower dust collecting hopper, and the series of ver- IOO ticallyarranged [iltering frames, each frame livery hopper, and with thedelivery space for comprising,r the single Vertical side bars and thepurified air, substantially as described. [o

the double horizontal top and bottom bars ear- In testimony whereof IVafx my signature rying parallel ltering surfaces, said frames inpresence of tWo witnesses.

being placed one against the other whereby JUDSON F. COLE. the side barsand the double top bars space Witnesses:

the filter surfaces and canse such spaces to H. W. I-IILDEBRANT,

communicate alternately with the air and-de- JOHN S. TRIMBLE.

